OMG! You can import your own models into quake?

I thought you could only apply textures (skins) to the existing models.

This is exactly one of the things I want to be able to do, add my own model to a game. I am not a big fan of the player vs player shooters because I feel like rainman as I get repeatedly raped by 9 year olds hyped up on jolt cola and cheesy poofs!

How do you set up your lighting? Are you suing some kind of GI mel script?